function pageJump(index,num,i){
		var flag = i;
		var pageIndex = index;
		var pageNum = num;
		var page;
		if(flag==1){
			document.getElementById("pageIndex").value = parseFloat(pageIndex) - 1;
		}
		if(flag==2){
			document.getElementById("pageIndex").value = parseFloat(pageIndex) + 1;
		}
		if(flag==3){
			var goPage = document.getElementById("goPage");
			if(!verifyNum(goPage,'跳转页面',100,0,true)){
				return false;
		      	}
			if(parseFloat(goPage.value)>parseFloat(pageNum)){
				alert("查询数据过量，请重新输入！");
				return false;
			}
			document.getElementById("pageIndex").value = goPage.value;
		}
	}
	
